We're in beta! If you find a bug or have feedback, let us know in our 
Ancient Tree Inventory
To build a living database of ancient trees
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsBiologytrees, united kingdom
trees
within 25 miles
Sep 9, 2025
107 opportunities found! use fewer search filter criteria to find more opportunities
Filters
2B Technologies, Inc.
AQTreks (AirQualityTreks)
Monitor air pollution levels and map air pollution around the US
Multiple locations, including yours!
- Ongoing
Citizen ScienceNature & OutdoorsGeographyEducationCrowd FundingTransportationEcology & EnvironmentComputers & TechnologyClimate & WeatherChemistryOcean Water Marineexperimentwinterglobal warmingec2020usadatabaseappair qualitygirl scoutsclimateandroidenvironmental justiceenvironmentiphonebicyclingweatheroutdoorsair pollutionweather datascienceair quality indexair pollution monitoringequitycommunity-based monitoringautumnsmartphone applicationstemclimate monitoringnaturehikingspringcitizen sciencecarbon monoxideparticulate matterclimate changecarbon dioxideairinvestigationsummerdatamobile application
Arizona Worm Farm
Arizona Worm Farm: Fruit Tree Basics
Arizona Worm Farm Arizona
- September 27, 2025 at 7:00 AM
CommunityGeneral Science
Arizona Worm Farm
Arizona Worm Farm: VIP Tour
Arizona Worm Farm Arizona
- September 13, 2025 at 7:00 AM
CommunityGeneral Science
NC State University | ecoipm.org | YourWildLife.org
A Tree's Life
To learn how climate & urbanization affect tree growth & health
Multiple locations, including yours!
- Ongoing
Citizen ScienceBiologyEducationClimate & WeatherNature & OutdoorsEcology & Environmenturban ecologycarbon sequestrationtreesclimate change
Cornell University/New York Department of Environmental Conservation
AVID (Assessing Vegetation Impacts by Deer)
Monitor the effects of deer browsing on woodland trees and plants
Multiple locations, including yours!
- Ongoing through November 30, 2030 at 8:35 PM
Citizen ScienceNature & OutdoorsEcology & EnvironmentAnimalstreesforestecologywildlifeforest healthwildflowersdeerseedlingswoodlands
Airigami
Balloon Breakdown
Help compost 40,000 latex balloons
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & Environmentballoonscompostingballooncompost
Northern Rivers Fire and Biodiversity Consortium Inc.
Bell Miner Associated Dieback Best Practice Project
Evaluate the removal of mid-storey density in disturbed forests using prescribed fire, weed control and bush regeneration as a method to restore BMAD affected forest.
Unrecognized location type near
- Ongoing
Citizen ScienceEducationEcology & EnvironmentBirdsbell miner associated dieback (bmad)tree health across the northern rivers region of new south wales treesgondwana world heritage birdsbird monitoring biodiversitybmad affected forestlandholdersaustraliadatalocations of native bell miner colonies
Zooniverse
Buzzy Bee - African Canopy Pollinators
Study pollination of Central African timber species
Anywhere
- Ongoing
Citizen ScienceInsects & PollinatorsEcology & EnvironmentBiologysize and composition of pollinators communitiespollination flower ecology tree conservation interaction botany insect entomologypollen dispersal distancestropical rainforesttree speciesfloral traitscirculating entomofaunatimber species
Casey Trees
To restore, enhance and protect the trees of Washington DC
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentGeology & Earth ScienceNature & OutdoorsBiologyplantingtreeswashington d.c.tree plantingcanopy